Question

Afla y-x, știind ca a-x= 723 si a-y = 492

Answer 1

a-x=723⇒x=a-723
a-y=492⇒y=a-492
a-a-723=723
2a-723=723
2a=723+723
2a=1446
a=1446:2
a=723   ⇒a-x=723⇒723-x=723 ⇒x=723-723 ⇒ x=0 
⇒a-y=492⇒723-y=492⇒y=723-492⇒y=231